WoRMS taxon details
From editor or global species database
Diagnosis Test trochospiral, planoconvex, spiral side convex, about two gradually enlarging whorls of five to seven chambers each, curved and oblique limbate sutures merging outward into the peripheral keel, umbilical side flat with large open umbilicus, sutures radial, slightly depressed, periphery with thick ornate keel; wall calcareous, opaque, finely perforate, smooth on the spiral side, umbilical side with numerous radial granular striae leading to the umbilicus and more prominent granules may encircle the umbilicus, beaded peripheral ke,el with elevated pustules and rugae; aperture interiomarginal, umbilical, and those of earlier chambers may remain open. Holocene; Pacific: off Korea. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
From editor or global species database
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